関口産業 Company Profile

It is a company that manufactures parts primarily used in passenger cars and trucks.

Sekiguchi Sangyo Co., Ltd. mainly manufactures parts used in passenger cars and trucks. In particular, we produce power steering, engine, and transmission components. The materials we use are primarily iron, aluminum, and stainless steel, and we have a comprehensive production system that ranges from material processing through cold forging to precision machining. Additionally, we utilize analysis technology to pursue the most rational processing methods and processes, responding to our customers' requests.